Finding the Fourth Proportional to 75,716,309.16, 113,593,572.66 and 21,128,849.28
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Solution
The fourth proportional to 75,716,309.16, 113,593,572.66 and 21,128,849.28 is: 31,698,606.32
Step by Step Solution
- Step 1: Write the proportion equation
75,716,309.16 : 113,593,572.66 = 21,128,849.28 : x - Step 2: Convert to fraction form
75,716,309.16/113,593,572.66 = 21,128,849.28/x - Step 3: Cross multiply
75,716,309.16x = 113,593,572.66 × 21,128,849.28 - Step 4: Simplify right side
75,716,309.16x = 2,400,101,475,909,868.50 - Step 5: Solve for x
x = 2,400,101,475,909,868.50/75,716,309.16 - Step 6: Final answer
x = 31,698,606.32
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.